This project is play music by using Cicadas. Cicadas are inserted electrode and connected computer. We can control power supply frequency and then control tone of Cicadas’ sound. In this case, Cicadas play Pachelbel’s Canon and we are able to listen harmony of Cicadas(https://www.youtube.com/watch?v=wdhv4QByH6c). In general speaker which does not work is discarded. It is waste. But, by using Cicadas as a speaker we does not waste speakers and can eat them as food.